Repeating firearm.



C. G. SWEBILIUS & H. T. R. HANITZ.

REPEATING FIREARM.

APPLIOATION TILED JAN. 12, 1914.

Patented July 28, 1914 5 snnms-snnm 1 gvwawtoz lJln-"filuua 4 %tf%'l mfn dg k /r y a W q/V' woe/a: f

THE NORRIS PETERS CO PHOTD-LITHOH WASHINGTON. D. C.

G. G. SWEBILIUS & H. T. R. HANITZ.

REPEATING FIREARM.

APPLICATION FILED JAN.12,.1914.

1,1 05,4 7, Patented July 28, 1914.

6 SHEETSSHEET 2.

[HE NORRIS PETERS ((1. PHOTOLITHU.. WASHINGTON, D. C.

G. G. SWEBILIUS & H. T. R. HANITZ.

REPEATING FIREARM.

APPLICATION FILED JAN. 12, 1914. 1 ,105,467, Patented July 28, 1914,

5 SHEETS-SHEET a.

my flit/I rz a V THE NORRIS PETERS CO.. PHOTOLITHO WASHINGTON D C G. G. SWEBILIUS & H. T. R. HANITZ.

REPEATING FIREARM.

APPLIUATION FILED up. 12, 1914.

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Ullll irnn s raapg p 1 CARL GUSTAF SWEBILIUS AND HANS 'r. n. HANTTZ, or NEW HAVEN, CONNECTICUT,

ASSIG-NOR-S TO THE MARLIN FIREARMS COMPANY, OF NEW HAVEN, CONNECTICUT,

A CORPORATION OF CONNECTICUT.

REPEATING FIREARM.

Specification of Letters Patent. Patented J uly28, 1914'.

Application filed January 12, 1914. Serial No. 811,517.

To all whomit may concern Be it known that we, CARL GUsrAr SWE- BILIUS and HANS T. R. HANITZ, a citizen of .the United States and a subject of the Em peror of Germany, respectively, residing at New Haven, New Haven county, State of Connecticut, have invented certain new and useful Improvements in Repeating Firearms, of which the following is a full, clear, and exact description.

Our invention relates to an improvement in repeating firearms, particularly of the hammerless variety, the object of the inven-'.

being shown in closed or locked up position with the gun ready to be fired. Fig. 2 is a similar View, the parts being shown in a different position, the breech block being fully retracted. Fig. 3 is a View similar to Fig. 1 with certain parts removed. Fig. 4 is a View similar to Fig. 2 with certain parts removed. Fig. 5 is a reverse view of certain parts shown in Fig. 1. Figs. 6, 7 and 8 are perspective views of details.

1 represents the receiver or breech frame.

2 represents the barrel.

3 represents the stock.

4 represents the magazine.

5 represents the breech block. I

6 represents the locking bolt pivoted at the rear of the breech block 5 to move up and down, the upper end of the locking bolt being arranged to move into a notch in the overhanging wall of the receiver after the manner indicated in dotted lines Fig. 1 to lock the breech block 5 in its advanced position.

7 represents a link by which the locking bolt is tilted in the manner hereinafter described. I

8 represents the cartridge carrier pivot-- ally mounted in the receiver to move up and down from the extreme position indicated in Fig. 1 to that indicated in Fig. 2, and vice versa.

9 represents the action rod, the firearm being of the so-called pump action type.

The action rod has a stud 10 at its rear end which is arranged to extend into a cam groove'in the side of the forward end of the locking bolt link 7, which link partakes of a relative rocking movement on its stud 11,the stud 11 projecting into ahole of cone sponding size in the side of the locking bolt, as indicated in dotted lines at 12, Fig. 5. The breech block has a longitudinal rib 18 on its side which moves in a longitudinal groove 1 1 in the adjacent side of the rebeing flat as indicated at 16, Fig. 3, and part inclining downwardly to the rear as indicated at 17. The rear end 15 of the link 7 constitutes, therefore, the fulcrum point, the frontendbeing elevated and depressed by the action of the stud 10 in the cam slot at the forward end of the link 7. Briefly describing the action of this link, the locking bolt and breech block: It will be seen that the rearward movement of the action rod will first cause the forward end of the link 7 to swing down. This movement will si-' multaneously swing down the locking bolt' along the supporting ledge first along the part 16 and then down the incline 17. Incidental to this movement a certain safety device is operated which will now be described.

18 is a movable stop shoulder mountedv vertically at the rear end of the link 7.

This stop shoulder has a forwardly projectceiver which guarantees a straight line movement to the breech block head. The rear end of the link 7 has a downward pro jection 15 which rides along a ledge on the, inner side of the receiver, part of the ledge ing rod 19 whichfis pressed by a spring 20 in a forward direction. The'forward end of this rod 19 stands directly to the'rear of the rear end of the action rod 9; (see rod back and to shift the position ofthest op the rearward movement of'the' action rod 9 is positively blocked by means of a stop lever 22 pivoted at 23and capable of being automatically and manually controlled.

The n'ormali position ofthe lever 22 is to stand as shown in solidlines, Fig.- 5, ab-

solutely blocking the retraction of the stop shoulder 18. If, however, the lever 22 is tilted to the position indicated in dotted lines, it becomes freed from the stop shoulder 118," whereupon the action rod may be retracted. This; constitutes a-safety device to; prevent the premature unlocking of the gun in. the event the gun hangs fire. If

"it is desired to open the gun to remove a may be tilted by engagement with the finger,

' forms the additional function of preventing loaded shell from the barrel, the lever 22 said 'leverhaving' a projecting finger-piece 24; Again, this safety stop lever 22 per any loose play fore and aft of the action rod 9, there being in many guns of the pump action type a limited amount of loose play even when the gun'is locked up. When-the gun isfired, it is desirablethat'this action 25 is pivoted at26 on some part of the rodllshouldbe automatically released, which action is accomplished preferably by means of an inertia block. 25. This i'nertia block "frame and is provided with a laterally projeo'tingfarm'27 at a point. to therear of the block, Which. arm projects under the rear endorum lever 22 so that when the inertia hl'o'ckswings from the position shown in solid lines Fig. 5'to that shown in dotted lines, it willjtiltthe lever 22 and free the stop shoulder 18. The inertia block 25 nor? mally'stands in the position indicated in dotted lines in Fig. 5, beinglightly supported in that position by any suitable means such, for example, as a spring 28.

Obviously on a quick recoil of thegun the inertia block will rock on its pivot in a y) direction to swing the lever 22.

provided with a latch shoulder 30 which is 2 9 a latch for the inertia piece. This latch is pivoted at its lower-fend and is arranged tojengage a shoulder 31'when the] inertia piece is advanced to the positlon indica'ted in dotted lines, and hold. the latter in thisgposition until the latch is released in the manner hereinafter described. A suit ablespring 32 may be provided to move the latch 29 in a direction to latch the inertia piece. When the gun is fully opened,.-th ei rear end of the locking bolt 6 will'strike the upper end of'the latch 29, as seen inFig. 2, thus releasing the inertia piece so as to allow it to swlng up to its normal position, releasing the rod 22 so that the latter will engage the stop shoulder 18 when the. latter has been again advanced.

The firearm is, of course, provided with the usual cartridge extracting and ejecting means and is provided with appropriatecutoff 'mechanism for releasing the cartridges one by one from the magazine at the proper time. As to these specific devices,'no claimofno'velty is made herein, and'since the same are well understood, it will be unnecessary to describe the constructlon or mode of operation of such devices."

The carrier 8 is operated in the same man; ner as set forth in the former Hepburn patcm; above referred to; that is to say, by means of a stud 33 on the side ofthe link 7 which projects into a cam groo'vefinj the side of the carrier, said cam groove being indicated in dotted lines, Fig. 2. As the link 7 moves to and fro, the carrier is depressed and elevated in the proper sequence with, the movements of the other parts to take a cartridge from the elevation of the magazine and raise it into position in line with the barrel chamber andin front of the breech block ready to be forced into the chamber of the barrel on the forward movei ment of the action rod. When the parts are reciprocating by the action of the action rod, the. Stud 10 on the action rod will, .;of 1

course, rest in the upper end of the cam.-

groove in the forward end of the link 7 and hence cannot be withdrawn therefrom even though the said groove is open at thelower end, which open-ended groove is necessary only when the gun is of the take-down va-;' riety which requires that. the action rod] shall be capable of being entirely with;

the barrel from the receiver. r i j j 3 1 is a spring pressed hammer which is form. I i I M 36 is the trigger which has a hook 3.7 ar- Q11 drawn from the receiver before detaching pivoted at 35 and whichisof conventional i ranged to engage a hook38 on the hammer when the latter is cooked, the hammerfbek ing cocked by the locking bolt on the retra'cf tion of the parts. The hammer 3a is preferably providedwith a suitable safetvseanthefl endof which isindicated at 39', the function of which is .to engage the hammer andhold l i it in a slightly over-cocked position'whi'le] the action mechanism is being operated, the

said hammer sear 39 being released," "for ex; ample, by a lug 42' on the carrier so" as to freethe sear from thehammer hub to allow the hammer to descend slightly so that ity will'be held alone by the trigger. In F ig. 2

the hammer appears in its overcooked position, the sear 39 being in a position to engage the hub of the hammer. In Fig. 1 the carrier is shown as having tripped the sear 39 and the hammer is shown as having ascended slightly so that its hook will engage with the hook 37 of the trigger.

a3 is the exposed part of the trigger safety device for manual operation, this trigger safety device being of any suitable construction, the purpose being to lock the trigger so that it cannot be pulled accidentally;

In operation: Starting with the parts as shown in Fig. 1, it will be seen that the parts of the gun are in position ready to be fired. When the trigger is pulled, the hammer descends and strikes the firing pin,'-which in turn strikes the loaded shell in the barrel 2 which is held therein positively by the breech block 5 and locking bolt 6-. Even though the operator is pulling back upon the action rod 9, this rearward pressure does not disturb the position of the parts until after the cartridge is discharged because the stop lever 22 is blocking the stop shoulder 18. When,

however, the shell is discharged, the recoil shifts the inertia block 25 so as to shift the stop lever 22 so that its forward end will become disengaged from the stop shoulder 18, whereupon the action rod 9 may be moved rearwardly. The first movement of the action rod moves the stop shoulder 18 back until it clears the laterally projecting shoulder 21 on the locking bolt (see Fig. 5). The continued rearward movement of the action rod 9 causes-the forward end of the link 7 to swing downwardly so as tov draw down the locking bolt 6 through the medium of the stud 11, thus unlocking the breech block and associated parts. The further rearward movement of the action rod 9 causes the breech block, locking bolt and link 7 to move rearwardly bodily, the rib 13 on the breech block following the groove 14 in the receiver frame, and the tail 15 of the link 7 following the ledge 1617. The rearward movement of these parts operates the carrier through the medium of the stud 33. Incidental to this movement of the various parts of the breech mechanism, the extractor, ejector and magazine cut-ofi' mechanism operate in the usual manner to cause the removal and ejection of the empty shell and the release of a single loaded shell from the magazine. The forward movement of the action rod carries forward the several parts of the breech mechanism bodily, lifts the carrier simultaneously so that the loaded shell carried thereby will be raised to its proper position in front of the breech block and forced into the chamber of the barrel. The final forward movement of the action rod causes the link 7 to tilt in a direction to lift the locking bolt 6 into the locking position. As soon as the parts of the gun are locked up, the sto shoulder 18 is projected .bv the spring 20 into the position indicated in solid lines in Fig. 5 so as to guarantee that the gun will remain locked untilthe cartridge is discharged. Simultaneously the lever 22 moves into position back of the stop shoulder 18 to hold said stop shoulder in the It will be seen that the breech block and locking bolt constitute, in effect, one combined element, the part 5 constituting the head portion and the part 6 constituting the tail portion, said parts being hinged together so that the tail portion only will tilt in the locking operation. understood is merely a preferred construction.

What we claim is:

1. In a repeating firearm, a receiver, action mechanism therein including a combined breech block and locking bolt, an action rod operatively connected with said combined breech block and locking bolt, a safety locking lever cooperating with the ac tion rod and combined breech block and locking bolt to hold said parts in the locked up position, with means for moving said safety locking lever to release said parts, said means being operable automatically by the recoil of the arm, and including a movable inertia block arranged to operatively engage said safety locking lever, with a latch for engaging said inertia block in the position in which it is caused to stand by the recoil of the gun, a part of said breech mechanism being arranged to cast off said latch to release the inertia block and means to automatically reset the latter in its normal position when the breech mechanism is retracted.

2. In a repeating firearm, a receiver, a combined breech block and locking bolt, the rear part of which is arranged to be moved into locking engagement with one of the walls of the receiver, an action rod, a movable link between the action rod and the breech locking end of the combined breech block and locking bolt, a movable stop shoulder carried by said link, a shoulder on the rear part of the combined breech block and locking bolt arranged to be blocked by said stop shoulder when the gun is locked up, and means normally operating to hold said stop shoulder in said blocking position while the gun is looked up.

3. In a repeatingv firearm, a receiver, a

This it will be able link between the action rod and the breech locking end of the combined breech block and locking bolt, a movable stop shoulder carried by said link, a shoulder on the rear part of the combined breech block and, locking bolt arranged to be blocked by said stop shoulder When the gun is locked up, means normally operating to hold said stop shoulder in said blocking position While the gun is locked up, ithmeans for automatically releasing saidstop shoulder upon the discharge of the gun.

a. In a repeating firearm, a receiver, a combined breech block and locking bolt, the rear part of which is arranged to be moved into locking engagement With one ofthe Walls of the receiver, an action rod, a movable link between the action rod and the breech locking end of the combined "breech block and locking bolt, a movable stop sho'ulder carried by said link, a shoulder on the rear part of the combined breech block and der at ,any time. i

5. In a repeating firearm, a receiver, a

Copies of this patent may be obtained for ranged-to enterthe front of the'receiver-for inclined portionat its" rear, the rear end of "said link being supported and movable upon said ledge, a-stop shoulder carried bvf combined breech block and locking bolt in:- eluding ahead-portion arranged for reciprocation only and 'a'tail portion arranged to; both reciprocate and oscillate, an abutment 4 shoulder on'thereceiver arranged to be en gagedby the tail portion-of thecombinea] breech block and locking bolt when the gun] ,is locked up, a reciprocating action rod; ms;- t

said link and movable therewithzand relatively thereto, connection between said step shoulder and said action rodfor permittingthe first-part of-the'rearward move ment of the" action rodto shiftsaid stop,"

shoulder, a, shoulder onthe'tail portion of thebreech block and locking boltarranged to be blocked by said stop-shoulder when the latter stands in its advanced position,

means normallyoperating to hold said stop shoulder against movement when 'theg un is locked up, With means for casting off said u safety locking lever upon the dischargeof the gun.

HANS T; HANITZ.

\Nitnesses:

, -E DL Y-, WILLIAM--O. MILL-Em fivc cents mu, byfafidressingithe Commissioner of Patents Washington, Di 0." i

" CARL GUSTAF s EBiLIUsQ 

